SAW-driven optical microcavities for device applications
The optical properties of microcavity (MC) polaritons parametrically driven by a surface acoustic wave (SAW) is analysed. In this case, the resonant acousto-optic nonlinearity gives rise to a very short ‘light–acoustic wave’ interaction length even for rather modest acoustic intensities. This can effectively be used for possible device applications. Two schemes ‘SAW pumping–optical probing’ are proposed for semiconductor MCs: one deals with the use of bulk incoming/outgoing photons, which resonantly couple with MC polaritons through a top distributed Bragg reflector, and another involves in-plane light delivered to and collected from the lateral surfaces of a MC chip.
